August 23, 2018
How do we know whether to put the NPP (PA or NP) or physician NPI number in box 24J on the claim form?
When services are reported using the Direct billing method, the NPI of the provider performing the services places their NPI number in box 24J. When services are reported Incident-to, whether performed by an NPP or ancillary staff, box 24J should show the name of the supervising provider.
*This response is based on the best information available as of 08/23/18.